NDLI: Assessment of the sensitivity of the South African KAT-7 and MeerKAT/SKA radio telescope reflector antennas

Content Provider	IEEE Xplore Digital Library
Author	Young, A. Terada, M.A.B. de Villiers, D.I.L. Davidson, D.B.
Copyright Year	2012
Description	Author affiliation: Antennas and Propagation Group, Department of Electrical Engineering, University of Brasilia, Brazil (Terada, M.A.B.) \|\| Department of Electrical and Electronic Engineering, Stellenbosch University, Stellenbosch, South Africa (Young, A.; de Villiers, D.I.L.; Davidson, D.B.)
Abstract	This paper assesses and compares the sensitivities of the antenna gain, cross-polarization and sidelobe levels with respect to feed and/or subreflector displacements due to estimated operational conditions as well as manufacturing tolerances. The probabilistic assessment is evaluated with the Unscented Transform, deemed computationally more efficient than other similar techniques, and employs physical optics computer simulations performed with the WebPRAC and GRASP computer codes. The procedure is applied to the KAT-7 prime focus parabolic reflector antenna, and to a proposed design for the MeerKAT offset Gregorian reflector antenna.
Starting Page	486
Ending Page	489
File Size	276032
Page Count	4
File Format	PDF
ISBN	9781467303330
e-ISBN	9781467303354
DOI	10.1109/ICEAA.2012.6328676
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-02
Publisher Place	South Africa
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sensitivity Transforms Antenna feeds Gain Standards
Content Type	Text
Resource Type	Article

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The SKA and the MeerKAT precursor — Extreme antenna engineering

Overview of developments of the eleven feeds

The design of the MeerKAT UHF band feed

An axi-symmetric segmented composite SKA dish design: Performance and production analysis

Analysis of the Bologna cross radio telescope

Computer-aided design of the Green Bank radio telescope reflector antenna

Deriving an optimum shaped reflector system for the SKA single pixel feeds

Beam squint compensation technique for the Sardinia Radio Telescope

Beam squint compensation technique for the Sardinia Radio Telescope

Assessment of the sensitivity of the South African KAT-7 and MeerKAT/SKA radio telescope reflector antennas

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